Question

If 2 is the arithmetic mean of 1-2x and
3x then the value of x is

Answer 1

x = 3

Explanation:

Since, 2 is the arithmetic mean of 1-2x and 3x.

Therefore,

`(1 - 2x + 3x)/(2) = 2 \\ \\ (1 + x)/(2) = 2 \\ \\ 1 + x = 4 \\ \\ x = 4 - 1 \\ \\ x = 3`